The mayor of London, Boris Johnson, poses with members of Notting Hill Carnival mas band Genesis. Photograph: Dan Kitwood/Getty Images

Never one to miss a photo opportunity, the mayor of London, Boris Johnson, has been out and about promoting this weekend's Notting Hill Carnival. As well as promising "robust policing" of the event, Johnson took the time to pose with members of Genesis, a band and dance troupe attending this year.

We're not quite sure what to make of the resulting snap, so write us a caption and we'll put the winning submission into our Today's picks section.